audioanalyser.h

/* Copyright (C) 2008 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.*/#ifndef __ardour_audioanalyser_h__#define __ardour_audioanalyser_h__#include <vector>#include <string>#include <ostream>#include <fstream>#include <vamp-sdk/Plugin.h>#include <ardour/audioregion.h>namespace ARDOUR {
class Readable;
class Session;
class AudioAnalyser {
public:
typedefVamp::Plugin AnalysisPlugin;
typedef std::string AnalysisPluginKey;
AudioAnalyser (float sample_rate, AnalysisPluginKey key);
virtual ~AudioAnalyser();
/* analysis object should provide a run method that accepts a path to write the results to (optionally empty) a Readable* to read data from and a reference to a type-specific container to return the results. */void reset ();
protected:
float sample_rate;
AnalysisPlugin* plugin;
AnalysisPluginKey plugin_key;
nframes64_t bufsize;
nframes64_t stepsize;
int initialize_plugin (AnalysisPluginKey name, float sample_rate);
int analyse (const std::string& path, Readable*, uint32_t channel);
/* instances of an analysis object will have this method called whenever there are results to process. if out is non-null, the data should be written to the stream it points to. */virtualint use_features (Vamp::Plugin::FeatureSet&, std::ostream*) = 0;
};
} /* namespace */#endif /* __ardour_audioanalyser_h__ */